GPU / AI Network Engineer

Data Centre Network Architect / Manager

Location: UK Remote - Outside IR35 - 6 months

We're looking for a Data Centre Network Architect / Manager who has actually built and operated high-performance data centre infrastructure, not just managed enterprise networks.

This is an opportunity to design the backbone of next-generation AI, GPU and high-performance computing environments , delivering the ultra-low latency, high-throughput networking required to power large-scale AI training, inference and cloud platforms.

If you've architected leaf-spine fabrics, AI network fabrics, carrier-grade connectivity and mission-critical data centre environments , we want to hear from you.

🚀 The Opportunity

You'll take ownership of the design, deployment and operation of network infrastructure supporting:

• Large-scale AI and GPU clusters
• High-density compute platforms
• Multi-site data centres
• Carrier and cloud connectivity
• Mission-critical 24/7 services

Working alongside senior infrastructure, platform and engineering teams, you'll define the networking strategy behind some of the most demanding environments in the industry.

What You'll Be Doing

✅ Design scalable Leaf-Spine architectures supporting AI and HPC workloads

✅ Build and optimise 100G, 400G and next-generation 800G networks

✅ Deliver advanced routing and fabric technologies including:

• BGP
• EVPN/VXLAN
• Advanced L2/L3 networking
• DDoS protection
• High-availability architectures

✅ Architect AI network fabrics using:

• RoCE
• RDMA
• InfiniBand
• Lossless Ethernet

✅ Lead new data centre deployments, including:

• Carrier onboarding
• Fibre route design
• Meet-Me Room architecture
• DIA/IP Transit procurement
• Multi-carrier resilience strategies

✅ Design secure, resilient connectivity into:

• Azure
• AWS
• Google Cloud

✅ Drive operational excellence across monitoring, capacity planning, disaster recovery and service resilience

What We're Looking For

You will have a proven track record delivering network architecture within:

• AI Infrastructure
• GPU Compute Environments
• HPC Platforms
• Hyperscale Data Centres
• Colocation Environments
• Cloud-Scale Infrastructure

Strong expertise in:

• Leaf-Spine Networks
• BGP
• EVPN/VXLAN
• Routing & Switching
• Network Security
• Carrier Connectivity
• High-Performance Ethernet

Highly Desirable

• 800G Ethernet deployments
• RoCE / RDMA expertise
• InfiniBand architecture
• GPU fabric design
• Optical networking
• Dark fibre and wavelength services
• Data centre commissioning experience